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Initialize OpenAL with a constructor call instead of first-use

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This commit is contained in:
Chris Robinson 2009-09-12 17:49:08 -07:00
parent 8b36a9d121
commit d6d1dba3d2
1 changed files with 107 additions and 133 deletions
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240
Alc/ALc.c
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@ -207,20 +207,17 @@ static tls_type LocalContext;
// Context Error
static ALCenum g_eLastContextError = ALC_NO_ERROR;
static ALboolean init_done = AL_FALSE;
///////////////////////////////////////////////////////
///////////////////////////////////////////////////////
// ALC Related helper functions
#ifdef _WIN32
static void alc_deinit();
static void alc_init(void);
static void alc_deinit(void);
BOOL APIENTRY DllMain(HANDLE hModule,DWORD ul_reason_for_call,LPVOID lpReserved)
{
int i;
(void)lpReserved;
// Perform actions based on the reason for calling.
@ -228,6 +225,7 @@ BOOL APIENTRY DllMain(HANDLE hModule,DWORD ul_reason_for_call,LPVOID lpReserved)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hModule);
alc_init();
break;
case DLL_PROCESS_DETACH:
@ -238,17 +236,115 @@ BOOL APIENTRY DllMain(HANDLE hModule,DWORD ul_reason_for_call,LPVOID lpReserved)
}
#else
#ifdef HAVE_GCC_DESTRUCTOR
static void alc_deinit() __attribute__((destructor));
static void alc_init(void) __attribute__((constructor));
static void alc_deinit(void) __attribute__((destructor));
#endif
#endif
static void alc_deinit()
static void alc_init(void)
{
static ALenum once = AL_FALSE;
int i;
const char *devs, *str;
if(once || !init_done) return;
once = AL_TRUE;
InitializeCriticalSection(&g_csMutex);
ALTHUNK_INIT();
ReadALConfig();
tls_create(&LocalContext);
devs = GetConfigValue(NULL, "drivers", "");
if(devs[0])
{
int n;
size_t len;
const char *next = devs;
i = 0;
do {
devs = next;
next = strchr(devs, ',');
if(!devs[0] || devs[0] == ',')
continue;
len = (next ? ((size_t)(next-devs)) : strlen(devs));
for(n = i;BackendList[n].Init;n++)
{
if(len == strlen(BackendList[n].name) &&
strncmp(BackendList[n].name, devs, len) == 0)
{
const char *name = BackendList[i].name;
void (*Init)(BackendFuncs*) = BackendList[i].Init;
BackendList[i].name = BackendList[n].name;
BackendList[i].Init = BackendList[n].Init;
BackendList[n].name = name;
BackendList[n].Init = Init;
i++;
}
}
} while(next++);
BackendList[i].name = NULL;
BackendList[i].Init = NULL;
BackendList[i].Deinit = NULL;
BackendList[i].Probe = NULL;
}
for(i = 0;BackendList[i].Init;i++)
{
BackendList[i].Init(&BackendList[i].Funcs);
BackendList[i].Probe(DEVICE_PROBE);
BackendList[i].Probe(ALL_DEVICE_PROBE);
BackendList[i].Probe(CAPTURE_DEVICE_PROBE);
}
str = GetConfigValue(NULL, "stereodup", "false");
DuplicateStereo = (strcasecmp(str, "true") == 0 ||
strcasecmp(str, "yes") == 0 ||
strcasecmp(str, "on") == 0 ||
atoi(str) != 0);
str = GetConfigValue(NULL, "excludefx", "");
if(str[0])
{
const struct {
const char *name;
int type;
} EffectList[] = {
{ "eaxreverb", EAXREVERB },
{ "reverb", REVERB },
{ "echo", ECHO },
{ NULL, 0 }
};
int n;
size_t len;
const char *next = str;
do {
str = next;
next = strchr(str, ',');
if(!str[0] || next == str)
continue;
len = (next ? ((size_t)(next-str)) : strlen(str));
for(n = 0;EffectList[n].name;n++)
{
if(len == strlen(EffectList[n].name) &&
strncmp(EffectList[n].name, str, len) == 0)
DisabledEffects[EffectList[n].type] = AL_TRUE;
}
} while(next++);
}
}
static void alc_deinit(void)
{
int i;
ReleaseALC();
@ -262,6 +358,7 @@ static void alc_deinit()
DeleteCriticalSection(&g_csMutex);
}
static void ProbeDeviceList()
{
ALint i;
@ -295,111 +392,6 @@ static void ProbeCaptureDeviceList()
BackendList[i].Probe(CAPTURE_DEVICE_PROBE);
}
static void InitAL(void)
{
if(!init_done)
{
int i;
const char *devs, *str;
init_done = AL_TRUE;
InitializeCriticalSection(&g_csMutex);
ALTHUNK_INIT();
ReadALConfig();
tls_create(&LocalContext);
devs = GetConfigValue(NULL, "drivers", "");
if(devs[0])
{
int n;
size_t len;
const char *next = devs;
i = 0;
do {
devs = next;
next = strchr(devs, ',');
if(!devs[0] || devs[0] == ',')
continue;
len = (next ? ((size_t)(next-devs)) : strlen(devs));
for(n = i;BackendList[n].Init;n++)
{
if(len == strlen(BackendList[n].name) &&
strncmp(BackendList[n].name, devs, len) == 0)
{
const char *name = BackendList[i].name;
void (*Init)(BackendFuncs*) = BackendList[i].Init;
BackendList[i].name = BackendList[n].name;
BackendList[i].Init = BackendList[n].Init;
BackendList[n].name = name;
BackendList[n].Init = Init;
i++;
}
}
} while(next++);
BackendList[i].name = NULL;
BackendList[i].Init = NULL;
}
for(i = 0;BackendList[i].Init;i++)
{
BackendList[i].Init(&BackendList[i].Funcs);
BackendList[i].Probe(DEVICE_PROBE);
BackendList[i].Probe(ALL_DEVICE_PROBE);
BackendList[i].Probe(CAPTURE_DEVICE_PROBE);
}
str = GetConfigValue(NULL, "stereodup", "false");
DuplicateStereo = (strcasecmp(str, "true") == 0 ||
strcasecmp(str, "yes") == 0 ||
strcasecmp(str, "on") == 0 ||
atoi(str) != 0);
str = GetConfigValue(NULL, "excludefx", "");
if(str[0])
{
const struct {
const char *name;
int type;
} EffectList[] = {
{ "eaxreverb", EAXREVERB },
{ "reverb", REVERB },
{ "echo", ECHO },
{ NULL, 0 }
};
int n;
size_t len;
const char *next = str;
do {
str = next;
next = strchr(str, ',');
if(!str[0] || next == str)
continue;
len = (next ? ((size_t)(next-str)) : strlen(str));
for(n = 0;EffectList[n].name;n++)
{
if(len == strlen(EffectList[n].name) &&
strncmp(EffectList[n].name, str, len) == 0)
DisabledEffects[EffectList[n].type] = AL_TRUE;
}
} while(next++);
}
}
}
#define DECL_APPEND_LIST_FUNC(type) \
void Append##type##List(const ALCchar *name) \
@ -616,8 +608,6 @@ ALCAPI ALCdevice* ALCAPIENTRY alcCaptureOpenDevice(const ALCchar *deviceName, AL
ALCdevice *pDevice = NULL;
ALCint i;
InitAL();
if(SampleSize <= 0)
{
SetALCError(ALC_INVALID_VALUE);
@ -777,8 +767,6 @@ ALCAPI const ALCchar* ALCAPIENTRY alcGetString(ALCdevice *pDevice,ALCenum param)
{
const ALCchar *value = NULL;
InitAL();
switch (param)
{
case ALC_NO_ERROR:
@ -877,8 +865,6 @@ ALCAPI const ALCchar* ALCAPIENTRY alcGetString(ALCdevice *pDevice,ALCenum param)
*/
ALCAPI ALCvoid ALCAPIENTRY alcGetIntegerv(ALCdevice *device,ALCenum param,ALsizei size,ALCint *data)
{
InitAL();
if(IsDevice(device) && device->IsCaptureDevice)
{
SuspendContext(NULL);
@ -1266,8 +1252,6 @@ ALCAPI ALCvoid ALCAPIENTRY alcDestroyContext(ALCcontext *context)
{
ALCcontext **list;
InitAL();
if (IsContext(context))
{
ALCdevice_StopContext(context->Device, context);
@ -1337,8 +1321,6 @@ ALCcontext * ALCAPIENTRY alcGetThreadContext(void)
{
ALCcontext *pContext = NULL;
InitAL();
SuspendContext(NULL);
pContext = tls_get(LocalContext);
@ -1363,8 +1345,6 @@ ALCAPI ALCdevice* ALCAPIENTRY alcGetContextsDevice(ALCcontext *pContext)
{
ALCdevice *pDevice = NULL;
InitAL();
SuspendContext(NULL);
if (IsContext(pContext))
pDevice = pContext->Device;
@ -1386,8 +1366,6 @@ ALCAPI ALCboolean ALCAPIENTRY alcMakeContextCurrent(ALCcontext *context)
ALCcontext *ALContext;
ALboolean bReturn = AL_TRUE;
InitAL();
SuspendContext(NULL);
// context must be a valid Context or NULL
@ -1428,8 +1406,6 @@ ALCboolean ALCAPIENTRY alcMakeCurrent(ALCcontext *context)
{
ALboolean bReturn = AL_TRUE;
InitAL();
SuspendContext(NULL);
// context must be a valid Context or NULL
@ -1485,8 +1461,6 @@ ALCAPI ALCdevice* ALCAPIENTRY alcOpenDevice(const ALCchar *deviceName)
ALCdevice *device;
ALint i;
InitAL();
if(deviceName && !deviceName[0])
deviceName = NULL;